JPH0642730Y2 - Filter structure for air cleaning - Google Patents

Description

[Detailed Description of the Invention] <Industrial field of application> The present invention relates to the structure of a filter portion in an apparatus having an air cleaning filter such as an air purifier. It is easy to check the dirt condition of the filter and replace the filter. It is intended to improve the structure of the handle used in such cases.

<Prior Art> Generally, there are various kinds of equipment including an air cleaning filter, such as an air conditioner. Here, an air cleaner equipped with an electric dust collector will be described as an example.

FIG. 6 shows a sectional view of a main part of a conventional air cleaner. Reference numeral 1 is a suction port provided on the front surface of the main body case, 5 is an electrostatic filter housed in the filter case 4, and 41 is a handle forming a part of the filter case 4, which is an external part of the main body. Reference numeral 6 denotes a concave portion provided on the upper surface of the main body case, which is an insertion portion for taking out a filter portion including the filter case 4 and the filter 5. Reference numeral 9 denotes a casing that constitutes a blower unit, and fixes a motor 8 that drives a centrifugal fan 7. Smoke, dust, etc. in the air sucked from the main body suction port 1
The dust particles are positively or negatively charged by the high voltage applied between the electrode plate 2 and the discharge line 3, and are collected by the electrostatic filter 5. Since the electrostatic filter 5 is clogged by dust collection and the surface of the filter fiber is covered with dust collecting particles, the dust collecting performance is deteriorated, so that the electrostatic filter 5 needs to be replaced regularly. The replacement of the electrostatic filter 5 depends on the user, but as a guideline for the replacement time, a color display label or the like indicating the replacement time is provided on a part of the main body or near the filter part in order to confirm the dirt condition of the filter by color. Pasted. The user pulls out the filter part from the main body and compares the degree of dirt of the filter with the color display label to judge the replacement time of the filter.

<Problems to be Solved by the Invention> However, in the above-mentioned conventional configuration, there are the following inconveniences in the structure for checking the dirt of the filter and the structure for taking out the filter.

In order to check the dirt of the filter, it is necessary to pull out the entire filter part from the main body, which makes the operation a big problem.

When the whole filter part is pulled out from the main body, dust and dirt attached to the filter part are dirty and dirty around the machine body and the surroundings.

Since the hand is inserted into the handle that is gripped when the filter part is taken out, it is necessary to form a recess on the external surface, which may not be acceptable in terms of design.

The present invention solves the above-mentioned problems of the prior art and aims to improve the structure of the handle used when the filter is replaced, while facilitating the user's confirmation of filter dirt.

<Means for Solving the Problems> In order to achieve the above object, the structure of the air cleaning filter portion of the present invention is an air cleaning filter portion that is detachable from the air cleaner body and that houses the air cleaning filter. And an indicator filter part that can be housed in the air cleaning filter part and serves as a sample for checking the degree of contamination of the air cleaning filter, in the structure of the handle part of the indicator filter part. A protrusion holding means is provided for protruding the indicator filter portion from the air cleaning filter portion by pressing and holding the indicator filter portion in the protruding state.

<Operation> With the above configuration, the present invention makes it possible to easily check the dirt of the filter by pushing the indicator filter part with one touch before taking out the whole filter part, and when the filter should be replaced, the slide frame of the indicator filter part is a handle. Becomes

<Embodiment> An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows an air purifier according to an embodiment of the present invention and an air purifying filter portion which is a main part of the air purifier (sometimes referred to as a filter portion in the present specification but they are synonyms).
It is a principal part perspective view of FIG. In FIG. 1, a main body 10 is a body that forms the outer appearance of an air purifier and is made of a plastic molded product or the like. A suction grille 101 for sucking air is provided on the front surface of the main body 10, and a blowout port 102 for blowing the purified air and an attachment / detachment port for an air cleaning filter portion are provided on the upper surface. In the upper part of FIG. 1, an air purifying filter is pulled out from the main body, and an exploded perspective view is shown for explaining the main structure. The air purifying filter portion is a synonym for the air purifying filter 15 in the filter case 13 (sometimes referred to as a filter in this specification, but it is a synonym, and in the present embodiment, air provided with an electric dust collector is used. It is an electrostatic filter because it is a purifier.), And there is a slide frame 17 in the filter case 13 that protrudes. Indicator filter 16 is inside slide frame 17.
The color display label 35 for comparing the filter stains is attached in the vicinity thereof. The upper part of the slide frame 17 is a handle, and if this handle is lifted, the entire air cleaning filter part is lifted.

The slide frame 17, which also serves as a handle, the indicator filter 16, the color display label 35, etc., constitute an indicator filter section. In addition, indicator filter 16
Also, like the air purifying filter 15, the filter case 13 and the slide frame 17 are provided with openings (not shown) for allowing air to flow in through the intake grill 101.

Next, referring to FIG. 2, the operation of taking out the air cleaning filter portion using the indicator filter portion will be described.
In Fig. 2, indicator filter section (slide frame)
17) When the upper part is pushed by hand, the indicator filter (slide frame 17) is unlocked and it pops out to the upper part as shown in Fig. 2. In this state, the indicator filter 16 is visually compared with the color display label 35 to determine whether the air cleaning filter 15 is dirty enough to be replaced. When it is judged that it is not time to replace it, push the upper part of the indicator filter part (slide frame 17) again by hand to lock it as shown in Fig. 2 and return it to the original state.
When it is judged that the air filter should be replaced, as shown in FIG. 2, by holding the handle of the indicator filter part (slide frame 17) and pulling it up, the entire air cleaning filter part can be lifted from the main body and pulled out.

FIG. 3 shows a perspective sectional view of an essential part of the air cleaner of the present invention. In FIG. 3, a plurality of electrode plates 11 made of metal are provided to face each other inside the suction grill 101 of the body 10, and a discharge wire 12 made of a tungsten wire or the like is installed between the electrode plates 11. Has been done.

Further, a filter case 13 is provided behind the electrode plate 11 and the discharge wire 12.
And a conductive wire mesh 14 for providing the air cleaning filter portion with polarity and the air cleaning filter 15 placed on the wire mesh 14 are housed in the filter case 13, and further, the slide frame described in FIG. The indicator filter part including the indicator filter 16, the indicator filter 16, and the wire net 18 on which the indicator filter 16 is mounted is also an air cleaning filter part provided in the filter case 13. A drive motor 20 for a fan 21 is fixed to a casing 19 that constitutes a blower section. FIG. 4 shows an electric connection state in the electric dust collector of the embodiment. Electrode plate 11
On the other hand, a positive high voltage is applied to the discharge wire 12, and the air cleaning filter 15 and the indicator filter 16 are set respectively.
It is the same pole as. Therefore, dust and particles in the inflowing air are positively charged between the electrode plate 11 and the discharge wire 12, and the air cleaning filter 1 placed on the wire nets 14 and 18 of negative polarity.
5, when passing through the indicator filter 16, dust, dust filter 15 for air cleaning, indicator filter
Adsorbed on 16 and collected. The air from which dust has been removed is discharged into the room from the air outlet 102 via the blower.

Fig. 5 shows the air cleaning filter (filter case 1
3) From the indicator filter part (slide frame 17)
FIG. 3 is a main part structural view for explaining a mechanism for causing a protruding operation. The slide frame 17 is provided with a connecting wire 31 for imparting a negative polarity to the above-mentioned wire nets 14 and 18, and a tension spring 32 for always causing the slide frame 17 to project. The upper end of the tension spring 32 is the filter case 13 Fixed to the side,
The lower end is fixed below the slide frame 17. The slide frame 17 is provided with a fitting melon 33, and the mating filter case 13 is provided with an embossing latch 34 for fitting. The protruding latch 34 has a function of temporarily holding the fitting melon 33 of the slide frame and then opening the fitting melon 33 when pushed by an overstroke. 16 is an indicator filter, and 35 is a color display label used to judge when to replace. 37 is a metal fitting for connecting the wire net 14 to the ground. Reference numeral 38 is a metal fitting for polar connection to the wire net 18 placed under the indicator filter 16, and electrically connects the wire net 14 and the wire net 18 via a connecting wire 31. The connection line 31 is a wire having a spring property, and when the slide frame 17 is locked to the filter case 13, the lower end of the connection line 31 contacts the metal fitting 38 and is electrically connected. When the filter case 13 is set in the main body, a leaf spring-like wiring member is provided in the opposing portion of the metal fitting 37 and electrically connected to the negative pole.
Needless to say, when the air purifying filter 15 is replaced, the indicator filter 16 is also replaced at the same time.

The air cleaning filter section is a generic term of 13,15,16,17,35 and the like, and the section of 16,17,35 and the like is called an indicator filter section.

<Effect of the device> The air cleaner filter structure of the present invention is as described above.
At the time of checking the degree of dirt of the air cleaning filter, by pressing the indicator filter section to cause the protruding holding means to project the indicator filter section from the air cleaning filter section and hold it in the protruding state, With the indicator filter part protruding from the air cleaning filter part, the dirt condition of the indicator filter can be visually checked accurately, and the dirt condition of the air cleaning filter can be confirmed very easily and surely. Therefore, it is not necessary to pull out the air cleaning filter from the main body to check the dirt condition of the air cleaning filter, and the dust and dust of the air cleaning filter generated by constantly pulling the air cleaning filter from the main body You can prevent it from falling around the body and getting dirty. In addition, when the indicator filter is dirty, you can easily and smoothly pull out the air cleaning filter from the main body by using the protruding indicator filter as a handle and pulling out the air cleaning filter from the main body. The air purifying filter can be replaced easily and quickly, and since the indicator filter also serves as a handle, the air purifying filter does not need to be separately provided on the air purifying filter. The configuration of the part can be simplified.

[Brief description of drawings]

FIG. 1 is a perspective view for explaining an air purifier and an essential part of an air purifying filter unit according to an embodiment of the present invention, and an indicator filter unit. FIG. 2 is a perspective view for explaining how to take out the indicator filter unit. FIG. 4 is a sectional perspective view of an essential part of an air cleaner of the present invention, FIG. 4 is an explanatory view of electrical connection of an electric dust collector of an embodiment, FIG. 5 is a structural view of an essential part for explaining one-touch protruding operation of an indicator filter part, FIG. 6 is a sectional view of a main part of a conventional air cleaner. 10 ... Body body, 101 ... Suction grille, 102 ... Blowout port, 13 ...
Filter case, 15… Air cleaning filter, 16… Indicator filter, 17… Slide frame, 35… Color display label.

Claims (1)

[Scope of utility model registration request] 1. An air purifying filter unit which is detachable from the main body of the air purifier and accommodates an air purifying filter, and a dirt condition of the air purifying filter which can be accommodated in the air purifying filter unit. In an air purifying filter portion structure including a sample indicator filter portion, a handle is formed on the indicator filter portion, and the indicator filter portion is made to protrude from the air purifying filter portion by pressing. A filter part structure for air cleaning, characterized in that it is provided with a protrusion holding means for holding the protrusion in a protruding state.